Quick definitions from WordNet (heavyweight)▸ noun:a professional boxer who weighs more than 190 pounds▸ noun:a wrestler who weighs more than 214 pounds▸ noun:an amateur boxer who weighs no more than 201 pounds▸ noun:a very large person; impressive in size or qualities▸ noun:a person of exceptional importance and reputation▸ adjective:heaviest in a category or of a heavyweight category (more than 190 pounds for prizefighters) ("A heavyweight boxer")